Zillow.com, the real estate value website that has been the talk of the town for the last year or so, was ordered by the Arizona Board Of Appraisals to stop providing "zestimates" of property values in Arizona. They claim the company needs an appraiser license to do this. The full story can be found at the Arizona Republic website.
This could be a huge blow to Zillow, especially if other states start following suit. On the other hand, I can't believe no one at the company saw this coming. I'd be willing to bet they have some sort of plan to deal with it.
Personally, I don't use Zillow. I've found their valuations to be a bit inaccurate. Of course, I last looked at them in detail a year ago, when they didn't have much data in the Phoenix area to work with. Supposedly, their estimates will get better with more data.